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mesa: fix clip plane enable breakage

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commit 00173d91b7
Author: Marek Olšák <marek.olsak@amd.com>
Date:   Sat Jun 10 12:09:43 2017 +0200

    mesa: don't flag _NEW_TRANSFORM for st/mesa if possible

It also optimizes the case slightly for GL core.

It doesn't try to fix that glEnable might be a bad place to do the
clip plane transformation.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
This commit is contained in:
Marek Olšák
2017-06-24 03:16:06 +02:00
parent fad0b47219
commit bcf5d5ce40
1 changed files with 6 additions and 1 deletions
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src/mesa/main/enable.c
+6 -1
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@@ -361,8 +361,13 @@ _mesa_set_enable(struct gl_context *ctx, GLenum cap, GLboolean state)
if (state) {
ctx->Transform.ClipPlanesEnabled |= (1 << p);
if (ctx->API == API_OPENGL_COMPAT || ctx->API == API_OPENGLES)
/* The projection matrix transforms the clip plane. */
/* TODO: glEnable might not be the best place to do it. */
if (ctx->API == API_OPENGL_COMPAT || ctx->API == API_OPENGLES) {
_mesa_update_clip_plane(ctx, p);
ctx->NewDriverState |= ctx->DriverFlags.NewClipPlane;
}
}
else {
ctx->Transform.ClipPlanesEnabled &= ~(1 << p);